CN201217492Y

CN201217492Y - Infinitely variable speed bicycle

Info

Publication number: CN201217492Y
Application number: CNU2008200136139U
Authority: CN
Inventors: 何凡; 苏荣华
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-19
Filing date: 2008-06-19
Publication date: 2009-04-08
Anticipated expiration: 2018-06-19

Abstract

The utility model belongs to a bicycle, particularly relating to a continuously variable bicycle, which comprises a front wheel (1), a front fork (2), a handlebar (4), an oblique beam (3), a seat bracket (6), a seat (5), pedals (18) and a rear wheel (7); two same sets of continuously variable devices are arranged at both sides of the vehicle body, i.e., a forked fixed main frame (8) is fixed at the lower end of the seat bracket (6); a parallel vehicle body chute frame (8-1) is fixed at the lower end of the two forks of the fixed main frame (8); the vehicle body chute frame (8-1) is fixedly connected with a vehicle body chute (14); the vehicle body chute (14) is arranged in a vehicle body slide block (15); the vehicle body slide block (15) is movably connected with an eccentric wheel ring connecting rod slide block (22) through a slide block connecting shaft (23); the continuously variable bicycle can be flexibly and easily adjusted in mobile or static state, and has simple structure, light weight and low cost.

Description

Bicycle with stepless speed change

Technical field

The utility model belongs to bicycle, particularly a kind of bicycle with stepless speed change.

Background technology

At present, the kind of bicycle is a lot, and ordinary bicycle is most, and what adjustable speed was also arranged has a chain bicycle, need be provided with a plurality of sprocket wheels in the front and back of car rear axle, and complex structure, speed adjustable range is little.The patent No. of Chinese patent is that 200720200055.2 " speed governing chain-less bicycle " its axis is a multistage transfer gear box, replaces original chain-driving with the set of gears system, complex structure, and weight is big, the cost height.And existing infinite speed variation generally adopts frictional transmission or adopt hydraulic pressure and electric elements, is not suitable for bicycle.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of with four-bar mechanism, in light weight, bicycle with stepless speed change that speed adjustable range is big.

The technical scheme that the utility model technical solution problem adopts is: bicycle with stepless speed change is by front-wheel, front fork, handlebar, cant beam, the vehicle seat support, vehicle seat, pedal, trailing wheel is formed, be characterized in that pretend with two cover continuously variable units in both sides on car body, transmission system is to fix fixedly body frame of a fork-shaped in the lower end of vehicle seat support, fixedly body frame two forks are captiveed joint with the hind axle two ends, fix a parallel car body slideway shelf in fixing body frame two fork lower ends, car body slideway shelf captive joint car body slideway, the car body slideway is contained in the car body slide block, the car body slide block flexibly connects with slide block adapter shaft and eccentric wheel lasso connecting rod slider, dress eccentric wheel lasso connecting rod in the eccentric wheel lasso connecting rod slider, in the eccentric wheel lasso connecting rod shrinking connecting-rod is housed versatilely, eccentric wheel lasso connecting rod and eccentric wheel are one, eccentric shaft on the eccentric wheel and pedal turn and are one, the shrinking connecting-rod right-hand member is hinged a partial gear with hinge, with bearing axis of revolution is housed on the partial gear, and captive joint with fixing body frame, at the hind axle two ends sprocket wheel one is housed respectively, sprocket wheel two, sprocket wheel one, sprocket wheel two is fixed into one with miniature gears, miniature gears and partial gear engagement, sprocket wheel one, the thread rotary orientation of sprocket wheel two is opposite; Wrapped brake rope on handlebar one end, lock rope two ends is along front fork and cant beam is left behind and fixing, and two lock end heads are divided into four strands, connect car body slide block rear and front end respectively.

The beneficial effects of the utility model are: bicycle with stepless speed change has removed chain and big minor sprocket, utilizes speed regulation device to make bicycle realize infinite speed variation, and can be implemented under the motion and standstill state and can both regulate.Before by bike, regulate transmitting ratio, can make starting laborsaving, again according to road surface situation and any governing speed of self-condition, regulate flexible in the process of moving.Simple in structure, in light weight, cost is low.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is that bicycle with stepless speed change structure master looks scheme drawing.

Fig. 2 is that the A-A of Fig. 1 is to enlarged drawing.

Fig. 3 is a stepless speed-regulating device constructional drawing among Fig. 1.

Among the figure, the 1-front-wheel; The 2-front fork; The 3-cant beam; The 4-handlebar; 4-1-lock rope; The 5-vehicle seat; 6-vehicle seat support; The 6-1-after-frame; The 7-trailing wheel; 8-is body frame fixedly; 8-1-car body slideway shelf; The 9-hind axle; The 10-miniature gears; The 11-partial gear; 11-1-partial gear axis of revolution; The 11-2-bearing; The 12-hinge; The 13-shrinking connecting-rod; 14-car body slideway; 15-car body slide block; The 16-eccentric wheel; The 17-camshaft; The 18-pedal; 19-sprocket wheel one; 20-sprocket wheel two; 21-eccentric wheel lasso connecting rod; 22-eccentric wheel lasso connecting rod slider; 23-slide block adapter shaft;

The specific embodiment

Embodiment, with reference to accompanying drawing 1～3, front fork 2 lower ends of bicycle with stepless speed change dress front-wheel 1 is equipped with handlebar 4 on the front fork, and front fork 2 middle parts are an end of cant beam 3 fixedly, and the other end of cant beam 3 is vehicle seat support 6 fixedly, and vehicle seat support 6 upper ends are vehicle seat 5 fixedly.Fix an after-frame 6-1 at the middle part of vehicle seat support 6, hind axle 9 is housed, trailing wheel 7 is housed in the middle of the hind axle 9 in car after-frame 6-1 lower end.Continuously variable unit be contained in fork-shaped fixedly the below of body frame 8 be two cover symmetries.Fixedly body frame 8 one ends are fixed on the below of vehicle seat support 6, and the other end is captiveed joint with hind axle 9 two ends.Fixedly a parallel car body slideway shelf 8-1 is fixed in 8 liang of forks of body frame lower end, and car body slideway shelf 8-1 connects disjunctor slideway 14, and car body slideway 14 is contained in the car body slide block 15, can slide front and back.Be provided with the hole on the periphery of car body slide block 15, slide block adapter shaft 23 is housed in the hole, axle 23 other ends are contained in the hole on eccentric wheel lasso connecting rod slider 22 peripheries versatilely, and eccentric wheel lasso connecting rod 21 slides in slide block 23.In the eccentric wheel lasso connecting rod 21 shrinking connecting-rod 13 is housed versatilely, eccentric wheel lasso connecting rod 21 left end fixed eccentrics 16, dress pedal 18 on the camshaft 17 on the eccentric wheel 16, shrinking connecting-rod 13 right-hand members are hinged a partial gear 11 with hinge 12, with bearing 11-2 axis of revolution 11-1 is housed on the partial gear 11, and captives joint with fixing body frame 8.At trailing wheel 7 two ends sprocket wheel 1 and sprocket wheel 2 20 are housed, sprocket wheel 1 and sprocket wheel 2 20 are fixing with miniature gears 10.Miniature gears 10 and partial gear 11 engagements.The thread rotary orientation of sprocket wheel 1 and sprocket wheel 2 20 is opposite.Wrapped brake rope 4-1 on an end of handlebar 4, lock rope 4-1 two ends is left behind along car front fork 2 and cant beam 3, and two lock rope 4-1 terminations are divided into four strands, connect the two ends of car body slide block 15 respectively, control the position of two slide blocks 15.

Bicycle with stepless speed change is to realize like this, pedal 18 is under the manpower effect, driving eccentric wheel 16 rotates, drive partial gear 11 reciprocally swingings by eccentric wheel lasso connecting rod 21, shrinking connecting-rod 13, car body slide block 15 on the car body slideway 14 can stepless change under the lock rope 4-1 on the handgrip 4 control to the distance of hind axle 9, the pivot angle scope of stepless change partial gear 11, hind axle 9 revolutions move a week, the angle that trailing wheel 7 turns over changes with the pivot angle scope of partial gear 11, thereby reaches stepless change.Partial gear 11 drives miniature gearss 10 and back and forth rotates, by the bicycle overriding clutch pulsation output is done in torque, about two overlap transmission system driven back wheels of vehicle 7 and advance.

Claims

1, a kind of bicycle with stepless speed change, by front-wheel (1), front fork (2), handlebar (4), cant beam (3), vehicle seat support (6), vehicle seat (5), pedal (18), trailing wheel (7) is formed, it is characterized in that pretend with two cover continuously variable units in both sides on car body, transmission system is to fix fixedly body frame (8) of a fork-shaped in the lower end of vehicle seat support (6), fixedly body frame (8) two forks are captiveed joint with hind axle (9) two ends, fix a parallel car body slideway shelf (8-1) in fixing body frame (8) two fork lower ends, car body slideway shelf (8-1) captive joint car body slideway (14), car body slideway (14) is contained in the car body slide block (15), car body slide block (15) flexibly connects with slide block adapter shaft (23) and eccentric wheel lasso connecting rod slider (22), dress eccentric wheel lasso connecting rod (21) in the eccentric wheel lasso connecting rod slider (22), shrinking connecting-rod (13) is housed in the eccentric wheel lasso connecting rod (21) versatilely, eccentric wheel lasso connecting rod (21) is an one with eccentric wheel (16), eccentric shaft (17) on the eccentric wheel (16) turns with pedal and is one, shrinking connecting-rod (13) right-hand member is hinged a partial gear (11) with hinge (12), partial gear (11) is gone up and with bearing (11-2) axis of revolution (11-1) is housed, and captive joint with fixing body frame (8), at hind axle (9) two ends sprocket wheel one (19) is housed respectively, sprocket wheel two (20), sprocket wheel one (19), sprocket wheel two (20) is fixed into one with miniature gears (10), miniature gears (10) and partial gear (11) engagement, sprocket wheel one (19), the thread rotary orientation of sprocket wheel two (20) is opposite; Wrapped brake rope (4-1) on handlebar (4) one ends, lock rope (4-1) two ends is along front fork (2) and cant beam (3) is left behind and fixing, and two lock rope (4-1) terminations are divided into four strands, connect car body slide block (15) rear and front end respectively.